Lens module and method for manufacturing thereof

A method for manufacturing a lens module in which a plurality of lenses are held in a state where an optical axis of each lens is aligned, comprising:

• superimposing a plurality of lens arrays, each of which has the plurality of lens portions and a substrate portion integrally connecting the plurality of lens portions, on each other at predetermined intervals, and aligning optical axes of the lens portions of the superimposed lens arrays;
• cutting the substrate portions of the other lens arrays of the plurality of superimposed lens arrays except the lowermost lens array in a superimposing direction by a first cutting portion;
• supplying thermosetting resins from a gap between cut surfaces of the cut substrate portion so as to fill a gap between the substrate portions of the superimposed lens arrays with the thermosetting resins and to cause the thermosetting resins to integrally cover the cut surfaces of the substrate portion and a surface of the substrate portion of the uppermost lens array in the superimposing direction of the plurality of superimposed lens arrays;
• curing the thermosetting resins by supplying heat;
• and
• separating an individual lens module by cutting the substrate portion of the lowermost lens array using a second cutting portion.